<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/welcome' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片试图区域 -->
    <el-card>
      <!-- 2. 为ECharts准备一个具备大小（宽高）的Dom -->
      <div id="main" style="width: 750px;height:400px;"></div>
    </el-card>
  </div>
</template>

<script>
import echarts from "echarts";
import _ from 'lodash'
import {timeDataApi} from '../api/index.js'
export default {
  data: function() {
    return {
      options: {
        title: {
          text: "用户来源"
        },
        tooltip: {
          trigger: "axis",
          axisPointer: {
            type: "cross",
            label: {
              backgroundColor: "#E9EEF3"
            }
          }
        },
        grid: {
          left: "3%",
          right: "4%",
          bottom: "3%",
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: "value"
          }
        ]
      }
    };
  },
  async mounted() {
    // 基于准备好的dom，初始化echarts实例
    var myChart = echarts.init(document.getElementById("main"))
    const {data: res} = await timeDataApi()
    if(res.meta.status !== 200) return this.$message.error('获取报表失败')
    const result = _.merge(res.data, this.options)
    myChart.setOption(result)
    console.log(res.data)
  }
};
</script>

<style lang="less" scoped>
</style>
